/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 06:55:59,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 06:55:59,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 06:55:59,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 06:55:59,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 06:55:59,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 06:55:59,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 06:55:59,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 06:55:59,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 06:55:59,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 06:55:59,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 06:56:00,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 06:56:00,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 06:56:00,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 06:56:00,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 06:56:00,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 06:56:00,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 06:56:00,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 06:56:00,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 06:56:00,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 06:56:00,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 06:56:00,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 06:56:00,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 06:56:00,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 06:56:00,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 06:56:00,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 06:56:00,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 06:56:00,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 06:56:00,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 06:56:00,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 06:56:00,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 06:56:00,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 06:56:00,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 06:56:00,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 06:56:00,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 06:56:00,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 06:56:00,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 06:56:00,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 06:56:00,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 06:56:00,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 06:56:00,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 06:56:00,048 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-06-11 06:56:00,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 06:56:00,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 06:56:00,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 06:56:00,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 06:56:00,087 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 06:56:00,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 06:56:00,088 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 06:56:00,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 06:56:00,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 06:56:00,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 06:56:00,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 06:56:00,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 06:56:00,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 06:56:00,089 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 06:56:00,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 06:56:00,089 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 06:56:00,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 06:56:00,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 06:56:00,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 06:56:00,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 06:56:00,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 06:56:00,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:56:00,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 06:56:00,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 06:56:00,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 06:56:00,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 06:56:00,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 06:56:00,091 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 06:56:00,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 06:56:00,091 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 06:56:00,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 06:56:00,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 06:56:00,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 06:56:00,417 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 06:56:00,418 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 06:56:00,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-06-11 06:56:00,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5b31e5b8/4a1b586bf20d4b00825f405cc55c768b/FLAG51edc3912 [2021-06-11 06:56:00,926 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 06:56:00,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-06-11 06:56:00,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5b31e5b8/4a1b586bf20d4b00825f405cc55c768b/FLAG51edc3912 [2021-06-11 06:56:01,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5b31e5b8/4a1b586bf20d4b00825f405cc55c768b [2021-06-11 06:56:01,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 06:56:01,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 06:56:01,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 06:56:01,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 06:56:01,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 06:56:01,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0770fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01, skipping insertion in model container [2021-06-11 06:56:01,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 06:56:01,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 06:56:01,586 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i[949,962] [2021-06-11 06:56:01,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:56:01,749 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 06:56:01,758 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i[949,962] [2021-06-11 06:56:01,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:56:01,834 INFO L208 MainTranslator]: Completed translation [2021-06-11 06:56:01,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01 WrapperNode [2021-06-11 06:56:01,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 06:56:01,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 06:56:01,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 06:56:01,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 06:56:01,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 06:56:01,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 06:56:01,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 06:56:01,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 06:56:01,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (1/1) ... [2021-06-11 06:56:01,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 06:56:01,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 06:56:01,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 06:56:01,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 06:56:01,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:56:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 06:56:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 06:56:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 06:56:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 06:56:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 06:56:01,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 06:56:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 06:56:01,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 06:56:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 06:56:01,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 06:56:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 06:56:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 06:56:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 06:56:01,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 06:56:01,959 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 06:56:02,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 06:56:02,273 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 06:56:02,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:56:02 BoogieIcfgContainer [2021-06-11 06:56:02,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 06:56:02,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 06:56:02,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 06:56:02,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 06:56:02,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 06:56:01" (1/3) ... [2021-06-11 06:56:02,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668b1072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:56:02, skipping insertion in model container [2021-06-11 06:56:02,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:56:01" (2/3) ... [2021-06-11 06:56:02,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668b1072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:56:02, skipping insertion in model container [2021-06-11 06:56:02,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:56:02" (3/3) ... [2021-06-11 06:56:02,281 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2021-06-11 06:56:02,287 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 06:56:02,290 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 06:56:02,291 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 06:56:02,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,333 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,333 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,333 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,333 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,333 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,333 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,333 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,335 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,335 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,336 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,336 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,339 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,339 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,344 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,344 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,353 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,353 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,355 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,356 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:56:02,360 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 06:56:02,376 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 06:56:02,407 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 06:56:02,407 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 06:56:02,408 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 06:56:02,408 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 06:56:02,408 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 06:56:02,408 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 06:56:02,408 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 06:56:02,408 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 06:56:02,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-06-11 06:56:02,472 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-06-11 06:56:02,473 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:56:02,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-11 06:56:02,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-06-11 06:56:02,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-06-11 06:56:02,490 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:56:02,502 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 131 flow [2021-06-11 06:56:02,505 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 131 flow [2021-06-11 06:56:02,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 131 flow [2021-06-11 06:56:02,529 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-06-11 06:56:02,529 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:56:02,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 06:56:02,532 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-11 06:56:02,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:56:02,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:02,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:56:02,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:02,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:02,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:02,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:02,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:56:02,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:02,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:56:02,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:02,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:02,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:02,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:56:03,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:03,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:56:03,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:56:03,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:03,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:56:03,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:56:03,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 06:56:03,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:56:03,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,514 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 06:56:03,562 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 06:56:03,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:56:03,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:03,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:56:03,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:03,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:03,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:04,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:04,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:04,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:04,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:04,436 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-06-11 06:56:04,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:04,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:56:04,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:04,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:04,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 06:56:04,676 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-06-11 06:56:04,882 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-06-11 06:56:04,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:04,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:56:04,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:04,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:04,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:56:04,959 INFO L163 LiptonReduction]: Checked pairs total: 1866 [2021-06-11 06:56:04,959 INFO L165 LiptonReduction]: Total number of compositions: 48 [2021-06-11 06:56:04,961 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2472 [2021-06-11 06:56:04,968 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-06-11 06:56:04,968 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:56:04,968 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:56:04,969 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:56:04,969 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:56:04,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:56:04,973 INFO L82 PathProgramCache]: Analyzing trace with hash -198011874, now seen corresponding path program 1 times [2021-06-11 06:56:04,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:56:04,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874248526] [2021-06-11 06:56:04,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:56:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:56:05,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:56:05,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874248526] [2021-06-11 06:56:05,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:56:05,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:56:05,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915978480] [2021-06-11 06:56:05,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-11 06:56:05,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:56:05,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-11 06:56:05,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-11 06:56:05,108 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 124 [2021-06-11 06:56:05,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 2 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:56:05,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 124 [2021-06-11 06:56:05,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:56:05,117 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-11 06:56:05,118 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:56:05,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 06:56:05,119 INFO L132 encePairwiseOnDemand]: 123/124 looper letters, 0 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2021-06-11 06:56:05,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 43 flow [2021-06-11 06:56:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-11 06:56:05,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-11 06:56:05,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 235 transitions. [2021-06-11 06:56:05,128 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9475806451612904 [2021-06-11 06:56:05,129 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 235 transitions. [2021-06-11 06:56:05,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 235 transitions. [2021-06-11 06:56:05,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:56:05,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 235 transitions. [2021-06-11 06:56:05,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,138 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,140 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 2 states and 235 transitions. [2021-06-11 06:56:05,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 43 flow [2021-06-11 06:56:05,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 40 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 06:56:05,143 INFO L241 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2021-06-11 06:56:05,145 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2021-06-11 06:56:05,145 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2021-06-11 06:56:05,146 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:56:05,146 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 17 transitions, 40 flow [2021-06-11 06:56:05,146 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 17 transitions, 40 flow [2021-06-11 06:56:05,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 17 transitions, 40 flow [2021-06-11 06:56:05,149 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-11 06:56:05,149 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:56:05,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 06:56:05,149 INFO L151 LiptonReduction]: Number of co-enabled transitions 126 [2021-06-11 06:56:05,155 INFO L163 LiptonReduction]: Checked pairs total: 138 [2021-06-11 06:56:05,155 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:56:05,155 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 06:56:05,156 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 40 flow [2021-06-11 06:56:05,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,156 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:56:05,156 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:56:05,157 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 06:56:05,157 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:56:05,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:56:05,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1843400852, now seen corresponding path program 1 times [2021-06-11 06:56:05,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:56:05,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744565638] [2021-06-11 06:56:05,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:56:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:56:05,227 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:56:05,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:56:05,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744565638] [2021-06-11 06:56:05,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:56:05,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:56:05,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598590874] [2021-06-11 06:56:05,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:56:05,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:56:05,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:56:05,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:56:05,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 124 [2021-06-11 06:56:05,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:56:05,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 124 [2021-06-11 06:56:05,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:56:05,255 INFO L129 PetriNetUnfolder]: 7/32 cut-off events. [2021-06-11 06:56:05,255 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:56:05,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 32 events. 7/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 3 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 51. Up to 18 conditions per place. [2021-06-11 06:56:05,255 INFO L132 encePairwiseOnDemand]: 120/124 looper letters, 4 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2021-06-11 06:56:05,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 58 flow [2021-06-11 06:56:05,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:56:05,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:56:05,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2021-06-11 06:56:05,258 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8118279569892473 [2021-06-11 06:56:05,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2021-06-11 06:56:05,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2021-06-11 06:56:05,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:56:05,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2021-06-11 06:56:05,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,262 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,262 INFO L185 Difference]: Start difference. First operand has 24 places, 17 transitions, 40 flow. Second operand 3 states and 302 transitions. [2021-06-11 06:56:05,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 58 flow [2021-06-11 06:56:05,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 58 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:56:05,263 INFO L241 Difference]: Finished difference. Result has 27 places, 19 transitions, 59 flow [2021-06-11 06:56:05,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2021-06-11 06:56:05,264 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2021-06-11 06:56:05,264 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:56:05,264 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 19 transitions, 59 flow [2021-06-11 06:56:05,264 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 19 transitions, 59 flow [2021-06-11 06:56:05,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 19 transitions, 59 flow [2021-06-11 06:56:05,268 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-06-11 06:56:05,268 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:56:05,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 25 events. 3/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 1 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 38. Up to 10 conditions per place. [2021-06-11 06:56:05,269 INFO L151 LiptonReduction]: Number of co-enabled transitions 136 [2021-06-11 06:56:05,270 INFO L163 LiptonReduction]: Checked pairs total: 99 [2021-06-11 06:56:05,270 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:56:05,270 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 06:56:05,271 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 59 flow [2021-06-11 06:56:05,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,271 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:56:05,271 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:56:05,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 06:56:05,271 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:56:05,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:56:05,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1310866963, now seen corresponding path program 1 times [2021-06-11 06:56:05,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:56:05,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532867356] [2021-06-11 06:56:05,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:56:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:56:05,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:05,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:05,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:56:05,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532867356] [2021-06-11 06:56:05,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:56:05,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:56:05,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964740397] [2021-06-11 06:56:05,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:56:05,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:56:05,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:56:05,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:56:05,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 124 [2021-06-11 06:56:05,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 59 flow. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:56:05,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 124 [2021-06-11 06:56:05,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:56:05,344 INFO L129 PetriNetUnfolder]: 3/34 cut-off events. [2021-06-11 06:56:05,344 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-06-11 06:56:05,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 34 events. 3/34 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 89 event pairs, 0 based on Foata normal form. 6/40 useless extension candidates. Maximal degree in co-relation 58. Up to 11 conditions per place. [2021-06-11 06:56:05,344 INFO L132 encePairwiseOnDemand]: 120/124 looper letters, 1 selfloop transitions, 4 changer transitions 2/21 dead transitions. [2021-06-11 06:56:05,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 21 transitions, 82 flow [2021-06-11 06:56:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:56:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:56:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 399 transitions. [2021-06-11 06:56:05,347 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8044354838709677 [2021-06-11 06:56:05,347 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 399 transitions. [2021-06-11 06:56:05,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 399 transitions. [2021-06-11 06:56:05,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:56:05,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 399 transitions. [2021-06-11 06:56:05,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,350 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,351 INFO L185 Difference]: Start difference. First operand has 27 places, 19 transitions, 59 flow. Second operand 4 states and 399 transitions. [2021-06-11 06:56:05,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 21 transitions, 82 flow [2021-06-11 06:56:05,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 21 transitions, 78 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:56:05,352 INFO L241 Difference]: Finished difference. Result has 31 places, 19 transitions, 73 flow [2021-06-11 06:56:05,352 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=31, PETRI_TRANSITIONS=19} [2021-06-11 06:56:05,352 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2021-06-11 06:56:05,352 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:56:05,352 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 19 transitions, 73 flow [2021-06-11 06:56:05,352 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 19 transitions, 73 flow [2021-06-11 06:56:05,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 19 transitions, 73 flow [2021-06-11 06:56:05,356 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-06-11 06:56:05,356 INFO L130 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2021-06-11 06:56:05,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 23 events. 2/23 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 42. Up to 8 conditions per place. [2021-06-11 06:56:05,356 INFO L151 LiptonReduction]: Number of co-enabled transitions 112 [2021-06-11 06:56:05,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:05,381 INFO L163 LiptonReduction]: Checked pairs total: 103 [2021-06-11 06:56:05,382 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 06:56:05,382 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-06-11 06:56:05,382 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 71 flow [2021-06-11 06:56:05,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,383 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:56:05,383 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:56:05,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 06:56:05,383 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:56:05,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:56:05,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1303603442, now seen corresponding path program 1 times [2021-06-11 06:56:05,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:56:05,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33959419] [2021-06-11 06:56:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:56:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:56:05,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:05,439 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:56:05,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:05,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:56:05,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33959419] [2021-06-11 06:56:05,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:56:05,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:56:05,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630958965] [2021-06-11 06:56:05,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:56:05,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:56:05,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:56:05,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:56:05,449 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 125 [2021-06-11 06:56:05,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:56:05,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 125 [2021-06-11 06:56:05,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:56:05,494 INFO L129 PetriNetUnfolder]: 38/89 cut-off events. [2021-06-11 06:56:05,494 INFO L130 PetriNetUnfolder]: For 115/139 co-relation queries the response was YES. [2021-06-11 06:56:05,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 89 events. 38/89 cut-off events. For 115/139 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 305 event pairs, 14 based on Foata normal form. 16/98 useless extension candidates. Maximal degree in co-relation 206. Up to 57 conditions per place. [2021-06-11 06:56:05,495 INFO L132 encePairwiseOnDemand]: 119/125 looper letters, 7 selfloop transitions, 7 changer transitions 2/28 dead transitions. [2021-06-11 06:56:05,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 123 flow [2021-06-11 06:56:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:56:05,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:56:05,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 488 transitions. [2021-06-11 06:56:05,498 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7808 [2021-06-11 06:56:05,498 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 488 transitions. [2021-06-11 06:56:05,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 488 transitions. [2021-06-11 06:56:05,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:56:05,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 488 transitions. [2021-06-11 06:56:05,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.6) internal successors, (488), 5 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,501 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,501 INFO L185 Difference]: Start difference. First operand has 30 places, 18 transitions, 71 flow. Second operand 5 states and 488 transitions. [2021-06-11 06:56:05,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 123 flow [2021-06-11 06:56:05,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:56:05,503 INFO L241 Difference]: Finished difference. Result has 35 places, 24 transitions, 120 flow [2021-06-11 06:56:05,503 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2021-06-11 06:56:05,503 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2021-06-11 06:56:05,503 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:56:05,503 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 24 transitions, 120 flow [2021-06-11 06:56:05,504 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 24 transitions, 120 flow [2021-06-11 06:56:05,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 24 transitions, 120 flow [2021-06-11 06:56:05,511 INFO L129 PetriNetUnfolder]: 36/86 cut-off events. [2021-06-11 06:56:05,511 INFO L130 PetriNetUnfolder]: For 150/174 co-relation queries the response was YES. [2021-06-11 06:56:05,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 86 events. 36/86 cut-off events. For 150/174 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 293 event pairs, 14 based on Foata normal form. 2/81 useless extension candidates. Maximal degree in co-relation 258. Up to 57 conditions per place. [2021-06-11 06:56:05,513 INFO L151 LiptonReduction]: Number of co-enabled transitions 136 [2021-06-11 06:56:05,514 INFO L163 LiptonReduction]: Checked pairs total: 62 [2021-06-11 06:56:05,514 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:56:05,514 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-06-11 06:56:05,515 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 120 flow [2021-06-11 06:56:05,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,515 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:56:05,515 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:56:05,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 06:56:05,516 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:56:05,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:56:05,516 INFO L82 PathProgramCache]: Analyzing trace with hash 64364856, now seen corresponding path program 1 times [2021-06-11 06:56:05,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:56:05,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065312535] [2021-06-11 06:56:05,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:56:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:56:05,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:05,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:05,596 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:56:05,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:56:05,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065312535] [2021-06-11 06:56:05,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:56:05,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:56:05,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545295520] [2021-06-11 06:56:05,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:56:05,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:56:05,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:56:05,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:56:05,604 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 125 [2021-06-11 06:56:05,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 24 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:56:05,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 125 [2021-06-11 06:56:05,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:56:05,686 INFO L129 PetriNetUnfolder]: 24/74 cut-off events. [2021-06-11 06:56:05,686 INFO L130 PetriNetUnfolder]: For 246/368 co-relation queries the response was YES. [2021-06-11 06:56:05,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 74 events. 24/74 cut-off events. For 246/368 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 269 event pairs, 2 based on Foata normal form. 37/107 useless extension candidates. Maximal degree in co-relation 268. Up to 52 conditions per place. [2021-06-11 06:56:05,691 INFO L132 encePairwiseOnDemand]: 119/125 looper letters, 5 selfloop transitions, 13 changer transitions 4/34 dead transitions. [2021-06-11 06:56:05,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 222 flow [2021-06-11 06:56:05,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 06:56:05,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 06:56:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 682 transitions. [2021-06-11 06:56:05,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7794285714285715 [2021-06-11 06:56:05,695 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 682 transitions. [2021-06-11 06:56:05,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 682 transitions. [2021-06-11 06:56:05,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:56:05,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 682 transitions. [2021-06-11 06:56:05,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.42857142857143) internal successors, (682), 7 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,702 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,702 INFO L185 Difference]: Start difference. First operand has 35 places, 24 transitions, 120 flow. Second operand 7 states and 682 transitions. [2021-06-11 06:56:05,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 222 flow [2021-06-11 06:56:05,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:56:05,706 INFO L241 Difference]: Finished difference. Result has 43 places, 30 transitions, 204 flow [2021-06-11 06:56:05,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=204, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2021-06-11 06:56:05,706 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 16 predicate places. [2021-06-11 06:56:05,706 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:56:05,707 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 30 transitions, 204 flow [2021-06-11 06:56:05,707 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 30 transitions, 204 flow [2021-06-11 06:56:05,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 30 transitions, 204 flow [2021-06-11 06:56:05,713 INFO L129 PetriNetUnfolder]: 18/66 cut-off events. [2021-06-11 06:56:05,713 INFO L130 PetriNetUnfolder]: For 279/336 co-relation queries the response was YES. [2021-06-11 06:56:05,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 66 events. 18/66 cut-off events. For 279/336 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 239 event pairs, 2 based on Foata normal form. 3/65 useless extension candidates. Maximal degree in co-relation 264. Up to 44 conditions per place. [2021-06-11 06:56:05,714 INFO L151 LiptonReduction]: Number of co-enabled transitions 156 [2021-06-11 06:56:05,716 INFO L163 LiptonReduction]: Checked pairs total: 98 [2021-06-11 06:56:05,716 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:56:05,717 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-06-11 06:56:05,717 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 204 flow [2021-06-11 06:56:05,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,720 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:56:05,720 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:56:05,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 06:56:05,721 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:56:05,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:56:05,721 INFO L82 PathProgramCache]: Analyzing trace with hash 140780906, now seen corresponding path program 1 times [2021-06-11 06:56:05,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:56:05,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937077309] [2021-06-11 06:56:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:56:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:56:05,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:05,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:05,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:05,764 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:56:05,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:05,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:56:05,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937077309] [2021-06-11 06:56:05,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:56:05,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 06:56:05,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246701699] [2021-06-11 06:56:05,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 06:56:05,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:56:05,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 06:56:05,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 06:56:05,776 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 125 [2021-06-11 06:56:05,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,777 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:56:05,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 125 [2021-06-11 06:56:05,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:56:05,860 INFO L129 PetriNetUnfolder]: 13/58 cut-off events. [2021-06-11 06:56:05,860 INFO L130 PetriNetUnfolder]: For 397/576 co-relation queries the response was YES. [2021-06-11 06:56:05,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 58 events. 13/58 cut-off events. For 397/576 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 189 event pairs, 0 based on Foata normal form. 49/103 useless extension candidates. Maximal degree in co-relation 261. Up to 41 conditions per place. [2021-06-11 06:56:05,861 INFO L132 encePairwiseOnDemand]: 119/125 looper letters, 2 selfloop transitions, 17 changer transitions 3/34 dead transitions. [2021-06-11 06:56:05,862 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 34 transitions, 280 flow [2021-06-11 06:56:05,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 06:56:05,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 06:56:05,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 870 transitions. [2021-06-11 06:56:05,864 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7733333333333333 [2021-06-11 06:56:05,865 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 870 transitions. [2021-06-11 06:56:05,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 870 transitions. [2021-06-11 06:56:05,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:56:05,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 870 transitions. [2021-06-11 06:56:05,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.66666666666667) internal successors, (870), 9 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,869 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,869 INFO L185 Difference]: Start difference. First operand has 43 places, 30 transitions, 204 flow. Second operand 9 states and 870 transitions. [2021-06-11 06:56:05,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 34 transitions, 280 flow [2021-06-11 06:56:05,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 34 transitions, 250 flow, removed 11 selfloop flow, removed 2 redundant places. [2021-06-11 06:56:05,875 INFO L241 Difference]: Finished difference. Result has 52 places, 31 transitions, 230 flow [2021-06-11 06:56:05,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=230, PETRI_PLACES=52, PETRI_TRANSITIONS=31} [2021-06-11 06:56:05,875 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 25 predicate places. [2021-06-11 06:56:05,876 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:56:05,876 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 31 transitions, 230 flow [2021-06-11 06:56:05,876 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 31 transitions, 230 flow [2021-06-11 06:56:05,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 31 transitions, 230 flow [2021-06-11 06:56:05,882 INFO L129 PetriNetUnfolder]: 11/53 cut-off events. [2021-06-11 06:56:05,882 INFO L130 PetriNetUnfolder]: For 218/240 co-relation queries the response was YES. [2021-06-11 06:56:05,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 53 events. 11/53 cut-off events. For 218/240 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 183 event pairs, 0 based on Foata normal form. 3/52 useless extension candidates. Maximal degree in co-relation 200. Up to 19 conditions per place. [2021-06-11 06:56:05,883 INFO L151 LiptonReduction]: Number of co-enabled transitions 152 [2021-06-11 06:56:05,887 INFO L163 LiptonReduction]: Checked pairs total: 91 [2021-06-11 06:56:05,888 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:56:05,888 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 06:56:05,893 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 31 transitions, 230 flow [2021-06-11 06:56:05,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:56:05,894 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:56:05,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 06:56:05,894 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:56:05,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:56:05,895 INFO L82 PathProgramCache]: Analyzing trace with hash 418313010, now seen corresponding path program 1 times [2021-06-11 06:56:05,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:56:05,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473004660] [2021-06-11 06:56:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:56:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:56:05,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:05,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:05,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:05,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:05,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:56:05,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473004660] [2021-06-11 06:56:05,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:56:05,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:56:05,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943286070] [2021-06-11 06:56:05,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:56:05,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:56:05,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:56:05,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:56:05,953 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 125 [2021-06-11 06:56:05,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 31 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:56:05,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 125 [2021-06-11 06:56:05,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:56:05,973 INFO L129 PetriNetUnfolder]: 18/80 cut-off events. [2021-06-11 06:56:05,974 INFO L130 PetriNetUnfolder]: For 580/625 co-relation queries the response was YES. [2021-06-11 06:56:05,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 80 events. 18/80 cut-off events. For 580/625 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 346 event pairs, 0 based on Foata normal form. 10/84 useless extension candidates. Maximal degree in co-relation 317. Up to 32 conditions per place. [2021-06-11 06:56:05,974 INFO L132 encePairwiseOnDemand]: 122/125 looper letters, 3 selfloop transitions, 1 changer transitions 10/32 dead transitions. [2021-06-11 06:56:05,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 32 transitions, 242 flow [2021-06-11 06:56:05,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:56:05,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:56:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 402 transitions. [2021-06-11 06:56:05,986 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.804 [2021-06-11 06:56:05,986 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 402 transitions. [2021-06-11 06:56:05,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 402 transitions. [2021-06-11 06:56:05,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:56:05,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 402 transitions. [2021-06-11 06:56:05,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,988 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:05,988 INFO L185 Difference]: Start difference. First operand has 51 places, 31 transitions, 230 flow. Second operand 4 states and 402 transitions. [2021-06-11 06:56:05,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 32 transitions, 242 flow [2021-06-11 06:56:05,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 32 transitions, 184 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-06-11 06:56:05,990 INFO L241 Difference]: Finished difference. Result has 48 places, 22 transitions, 121 flow [2021-06-11 06:56:05,990 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=48, PETRI_TRANSITIONS=22} [2021-06-11 06:56:05,991 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 21 predicate places. [2021-06-11 06:56:05,991 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:56:05,991 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 22 transitions, 121 flow [2021-06-11 06:56:05,991 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 22 transitions, 121 flow [2021-06-11 06:56:05,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 22 transitions, 121 flow [2021-06-11 06:56:05,994 INFO L129 PetriNetUnfolder]: 6/30 cut-off events. [2021-06-11 06:56:05,994 INFO L130 PetriNetUnfolder]: For 46/47 co-relation queries the response was YES. [2021-06-11 06:56:05,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 30 events. 6/30 cut-off events. For 46/47 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 49 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 79. Up to 10 conditions per place. [2021-06-11 06:56:05,994 INFO L151 LiptonReduction]: Number of co-enabled transitions 40 [2021-06-11 06:56:06,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:06,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:06,015 INFO L163 LiptonReduction]: Checked pairs total: 10 [2021-06-11 06:56:06,015 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 06:56:06,015 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-06-11 06:56:06,016 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 21 transitions, 119 flow [2021-06-11 06:56:06,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:06,016 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:56:06,016 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:56:06,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 06:56:06,017 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:56:06,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:56:06,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1749725006, now seen corresponding path program 2 times [2021-06-11 06:56:06,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:56:06,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713295598] [2021-06-11 06:56:06,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:56:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:56:06,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:06,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:56:06,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:56:06,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:56:06,070 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:56:06,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:56:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:56:06,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713295598] [2021-06-11 06:56:06,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:56:06,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:56:06,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899057440] [2021-06-11 06:56:06,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:56:06,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:56:06,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:56:06,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:56:06,077 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 126 [2021-06-11 06:56:06,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 21 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:06,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:56:06,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 126 [2021-06-11 06:56:06,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:56:06,092 INFO L129 PetriNetUnfolder]: 6/27 cut-off events. [2021-06-11 06:56:06,092 INFO L130 PetriNetUnfolder]: For 64/66 co-relation queries the response was YES. [2021-06-11 06:56:06,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 27 events. 6/27 cut-off events. For 64/66 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 38 event pairs, 0 based on Foata normal form. 3/30 useless extension candidates. Maximal degree in co-relation 80. Up to 10 conditions per place. [2021-06-11 06:56:06,092 INFO L132 encePairwiseOnDemand]: 121/126 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2021-06-11 06:56:06,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 20 transitions, 111 flow [2021-06-11 06:56:06,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:56:06,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:56:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 466 transitions. [2021-06-11 06:56:06,096 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7396825396825397 [2021-06-11 06:56:06,096 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 466 transitions. [2021-06-11 06:56:06,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 466 transitions. [2021-06-11 06:56:06,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:56:06,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 466 transitions. [2021-06-11 06:56:06,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.2) internal successors, (466), 5 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:06,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:06,099 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:06,099 INFO L185 Difference]: Start difference. First operand has 41 places, 21 transitions, 119 flow. Second operand 5 states and 466 transitions. [2021-06-11 06:56:06,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 20 transitions, 111 flow [2021-06-11 06:56:06,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 20 transitions, 104 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 06:56:06,100 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-06-11 06:56:06,100 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-06-11 06:56:06,100 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 13 predicate places. [2021-06-11 06:56:06,100 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:56:06,100 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 0 transitions, 0 flow [2021-06-11 06:56:06,100 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 0 transitions, 0 flow [2021-06-11 06:56:06,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 06:56:06,101 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 06:56:06,101 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:56:06,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 06:56:06,101 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 06:56:06,101 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:56:06,101 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:56:06,101 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 06:56:06,102 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 06:56:06,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:56:06,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 06:56:06,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:56:06 BasicIcfg [2021-06-11 06:56:06,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 06:56:06,106 INFO L168 Benchmark]: Toolchain (without parser) took 4658.88 ms. Allocated memory was 413.1 MB in the beginning and 497.0 MB in the end (delta: 83.9 MB). Free memory was 375.6 MB in the beginning and 201.8 MB in the end (delta: 173.8 MB). Peak memory consumption was 258.9 MB. Max. memory is 16.0 GB. [2021-06-11 06:56:06,106 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 413.1 MB. Free memory is still 393.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:56:06,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.87 ms. Allocated memory is still 413.1 MB. Free memory was 375.5 MB in the beginning and 375.9 MB in the end (delta: -370.3 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-11 06:56:06,106 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.25 ms. Allocated memory is still 413.1 MB. Free memory was 375.9 MB in the beginning and 373.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:56:06,107 INFO L168 Benchmark]: Boogie Preprocessor took 17.48 ms. Allocated memory is still 413.1 MB. Free memory was 373.8 MB in the beginning and 372.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:56:06,107 INFO L168 Benchmark]: RCFGBuilder took 388.78 ms. Allocated memory is still 413.1 MB. Free memory was 372.7 MB in the beginning and 349.7 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:56:06,107 INFO L168 Benchmark]: TraceAbstraction took 3829.22 ms. Allocated memory was 413.1 MB in the beginning and 497.0 MB in the end (delta: 83.9 MB). Free memory was 348.6 MB in the beginning and 201.8 MB in the end (delta: 146.8 MB). Peak memory consumption was 230.7 MB. Max. memory is 16.0 GB. [2021-06-11 06:56:06,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 413.1 MB. Free memory is still 393.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 385.87 ms. Allocated memory is still 413.1 MB. Free memory was 375.5 MB in the beginning and 375.9 MB in the end (delta: -370.3 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.25 ms. Allocated memory is still 413.1 MB. Free memory was 375.9 MB in the beginning and 373.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.48 ms. Allocated memory is still 413.1 MB. Free memory was 373.8 MB in the beginning and 372.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 388.78 ms. Allocated memory is still 413.1 MB. Free memory was 372.7 MB in the beginning and 349.7 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3829.22 ms. Allocated memory was 413.1 MB in the beginning and 497.0 MB in the end (delta: 83.9 MB). Free memory was 348.6 MB in the beginning and 201.8 MB in the end (delta: 146.8 MB). Peak memory consumption was 230.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2453.8ms, 70 PlacesBefore, 27 PlacesAfterwards, 61 TransitionsBefore, 18 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 48 TotalNumberOfCompositions, 1866 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1102, positive: 1008, positive conditional: 0, positive unconditional: 1008, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 598, positive: 568, positive conditional: 0, positive unconditional: 568, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 598, positive: 568, positive conditional: 0, positive unconditional: 568, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 598, positive: 561, positive conditional: 0, positive unconditional: 561, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 122, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1102, positive: 440, positive conditional: 0, positive unconditional: 440, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 598, unknown conditional: 0, unknown unconditional: 598] , Statistics on independence cache: Total cache size (in pairs): 975, Positive cache size: 945, Positive conditional cache size: 0, Positive unconditional cache size: 945, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0ms, 25 PlacesBefore, 24 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 138 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 69, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 982, Positive cache size: 951, Positive conditional cache size: 0, Positive unconditional cache size: 951, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.4ms, 27 PlacesBefore, 27 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 99 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 985, Positive cache size: 954, Positive conditional cache size: 0, Positive unconditional cache size: 954, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.2ms, 31 PlacesBefore, 30 PlacesAfterwards, 19 TransitionsBefore, 18 TransitionsAfterwards, 112 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 103 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1028, Positive cache size: 996, Positive conditional cache size: 0, Positive unconditional cache size: 996, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.5ms, 35 PlacesBefore, 35 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 62 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1028, Positive cache size: 996, Positive conditional cache size: 0, Positive unconditional cache size: 996, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5ms, 43 PlacesBefore, 43 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 98 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1030, Positive cache size: 998, Positive conditional cache size: 0, Positive unconditional cache size: 998, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.8ms, 52 PlacesBefore, 51 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 91 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1030, Positive cache size: 998, Positive conditional cache size: 0, Positive unconditional cache size: 998, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.4ms, 48 PlacesBefore, 41 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 1070, Positive cache size: 1038, Positive conditional cache size: 0, Positive unconditional cache size: 1038, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 40 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1070, Positive cache size: 1038, Positive conditional cache size: 0, Positive unconditional cache size: 1038, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3700.9ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 414.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2557.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 17 SDslu, 12 SDs, 0 SdLazy, 100 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 91.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 90.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=6, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.8ms SsaConstructionTime, 129.8ms SatisfiabilityAnalysisTime, 310.8ms InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...